Refactor again (#11)

linux/ubuntu/mega/Dockerfile

@@ -0,0 +1,19 @@
+ARG IMAGE=ghcr.io/catthehacker/alpine
+ARG TAG=act-latest
+FROM ${IMAGE}:${TAG}
+
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+SHELL [ "/bin/bash", "--noprofile", "--norc", "-e", "-o", "pipefail", "-c" ]
+
+RUN #TODO
+
+ARG BUILD_TAG_VERSION="dev"
+ARG BUILD_TAG="rust"
+ARG BUILD_REF="master"
+
+LABEL org.opencontainers.image.url="https://github.com/catthehacker/docker_images/tree/${BUILD_REF}/linux/${ImageOS}/${BUILD_TAG}/"
+LABEL org.opencontainers.image.version=${BUILD_TAG_VERSION}
+LABEL org.opencontainers.image.title=${BUILD_TAG}-${TARGETARCH}-${TARGETVARIANT}
+LABEL org.opencontainers.image.revision=${BUILD_REF}